Henry hersee freeman



(Model.) H. H. FREEMAN. LOGK AND LATCH.

No. 290,024. lmemedlDer). 11; 1883.

WITNESSES l v INVNTOR i' y BY N. Pains. Pham-unumpngr. wimingwn. uc`

UNirnD STATESN PATENT rricn.

LOCK AND LATCH.

SPECIFICATION forming part of Letters Patent No. 290,024, dated December 11, 1883.

2 Application led April 1S, 1883. (Model.) y I To all whom, may concern.-

Be it known that l', HENRY Hnnsnn Fann- MAN, of Milton, in the Province of Ontario and Dominion of Canada, have invented certain new and useful Improvements in Locks and Latches, of whichthe following is a full, clear, and exact description. Y

My invention relates to that class of locks in which the knob at the outside of the door may be disconnected at will from the boltthrowing tumblers of the lock or latch, to prevent opening the door from the outside.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 represents asmall section of a door with my improved lock applied thereto,with parts in longitudinal sectional elevation. Fig. 2 is a perspective view of the spring-pressed sliding bar. Fig. 3 is a perspective view of the bar-casing. Figs. 4. and 5 are insideviews of the two half-seotions of the bar-casing. Fig. 6 shows the key; Fig. 7, the revolving keyplate, and Fig. 8 is a front view of the lock and its hollow or bell-mouthed knob.

In carrying out my invention I make a hollow spindle, a, preferably in one piece, circular in form, and about seven-eighths of an inch in diameter for light locks or latches. The spindle has a flange, Z),at the inner end, to rest against the face of the door c when the spindle a is passed into the bore or mortise d ot' the door, in which the spindle fits loosely for axial rotation, with the latch or lock body e resting against or close to the flange b, to hold the spindle against end movement in the mortise. The outer end of the spindle a is apertured, preferably, to leave the annular shoulder f, against which the loose revolving key-plate g may rest, to confine the key plate within the spindle by the casing h for the sliding bar i. This casing h,(shown in detail views, Figs.

3, 4., and 5,) I make in two parts or halves, so

that the casing may be iinished in casting` it, and with any suitable number andl form of wards h for the flat key k, Fig. 6, andl with a deep open slot or'notch, h?, and shallow notch h3 in one end of the casing, the notches h2 h3 5o being preferably arranged diametrically opposite each other, as shown, and I form the side edges of the halves of the casing with any suitable lugs or lips, h, and notches h5, to receive the lips, so that when the halves of the 4casing are laid together, as in Fig. 3, the wards h and notches h2 h3 shall remain inproper relative position with each other when the casing 71, is slipped into the spindle or barrel a, as

in Fig. 1, and behind the key-plate `/,in which position the casing 7L is held to the spindle and to axially rotate with it by the fastening pin or -screw c. VBefore the casing h is inserted in the spindle, the sliding clutch -bar 'L' is placed within the casing. This bar t' is preferably formed with a head, i', slotted at t2, to receive the end of the key 7s, and has also a projecting .pin orstud, j, to engage the slots or notches if h of theA casing 71., and a bit, Z, at the inner end, having shoulders Z' at one or both sides of the body of the bar,for engaging a notch or notches, m, formed in the hub o, which notches preferably extend clear through the hub, to

allow the bit Z to pass through in adjusting the lock orlatch to the door.

A spring, n, on the bar i acts against the head z" of the bar and shoulders or lugs h6 ofthe casing h to throw the bar outward, to keep the stud j and bitl engaged, respectively, with the notches hl and in ofthe casing 7L and hub o, or to engage the stud j of the bar with the shallow notch h3 ofthe casing, and to hold the bit Zdisengaged from the notches m of the hub; and the head and body of the bar fi are fitted` to the interior of the casing h and to the hub o, so that while the bar slides freely it shall be held steadily, with the key-slot i? in proper alignment kwith the wards h', to facilitate the quick and correct adjustment of the key to the lock. The casing h being secured to the spindle a by the pin orscrew a, and

4the outside knob.r q, made fast to the spindle of the lock or latch is xed to the hub. o by a pin or screw, o, so that the door may always IOO be unlocked or unlatched by using the inside knob, v, which is made hollow or bell-shaped, as shown, to admit the fingers to grasp the projecting bit Z of bar i to work said bar, as next described.

Vith the parts in the positions ol Fig. l the stud j of bar Z rests in the deep notch l1,2 of the casing h, and the bit Z is engaged with the hub o, so that the latch-bolt may be thrown to open the door` by turning the outside knob, q. 'To disconnect the hub from the knob q from the inside, the bit Z is grasped and the bar t' drawn inward to release said bit from the notches m of the hub and Withdraw studj from the deep notch h2 ot casing 71., when the bar i', with the easing h and spindle a, may be turned half-round by the bit, to permit stud j of the bar Z to be lodged by spring n, in the shallow notch h3, which will hold the bit Z clear ofthe hub and prevent the throwing of the latchbolt by axial movement ot' the outside knob. q, and its connected spindle a, casing Z1, and bar i; and to set the lock or latch back to the position of Fig. 1 to again connect the outside knob with the hub, the stud j is to be lifted from notch IL and the parts turned to engage the stud with the deep notch h. These movements of the parts to connect and disconnect the tulnblers can be quickly performed by the use ofthe key from the outside by passing the key along the Wards h and into the slot it of the head of bar i, which may be pushed inward by the key, to disengage and engage stud j from and with either slot ht h, substantially as above described.

My improved lock answers all the purposes of the ordinary rinrlock, with increased advantages, while avoiding the cutting of a keyhole through the door, thereby shutting out the undue attention of curious persons.

Having thus described my invention, I claim as new and desire tosecure by Letters Patent- 1. A lock or latch constructed with a hollow spindle flanged at one end, and a casing Within the spindle carrying a spring-pressed bar adapted to engage slots of the casing and Slots of the tumbler-hub, substantially as shown and described.

2. The combination, with the spindle a, fianged at Z), and adapted to turn axially in a mortise, d, ofa door, ofthe casing ZL, notched at h2 h, and carrying the spring-pressed sliding bar t, having a stu-d, j, for engaging the notches h'l 71,, and a bit, Z, for engaging a slot or slots, m, ot'thc hub o, substantially as shown and described.

3. The combination, with the rotary spindle a, having the end iianges, bf, of the loose key-plate g, the case Zz, having wards h and opposite notches h'z h", the slide-bar i, having slotted head i', stud y', and shouldered bit Z, the spring n, and the notched hub o, as shown and described.

4. The combination, with a spindle, a, casing h, having wards h', and the spring-pressed bar i, of the revolving slotted key-plate g, confined at the end of the spindle a, by the iiange f, and the casing Zz, substantially as shown and described.

HENRY HERSEE FREEMAN.

'itnesses:

l). MCGIBBON,

PETER Duri?. 

